I didn't find a good script for my needs for speed controling the fan of my odroid. So I wrote my own.
Between 40-50°C the fan will be at low speed, otherwise will be auto controlled. Delay is 10 seconds.
This script give another curve than which is possible with just the auto mode.
Perhaps it's usefull for somebody else
PS: I'm still improving it, so it may change
Code: Select all
#!/bin/bash last=0 var=100000 #set auto start_temp to 50 echo 50 > /sys/devices/platform/odroidu2-fan/start_temp while true; do sleep 10 var=$(< /sys/devices/virtual/thermal/thermal_zone0/temp) echo $var echo $last if [ $var -lt 50000 ] && [ $var -gt 40000 ];then if [ $last -eq 1 ] || ( [ $last -eq 2 ] && [ $var -le 42000 ] );then continue fi last=1 echo manual > /sys/devices/platform/odroidu2-fan/fan_mode echo 100 > /sys/devices/platform/odroidu2-fan/pwm_duty sleep 1 echo 34 > /sys/devices/platform/odroidu2-fan/pwm_duty echo "low speed" else if [ $last -eq 2 ];then continue fi last=2 echo auto > /sys/devices/platform/odroidu2-fan/fan_mode echo "auto" fi done